Leading Manufacturer of Safety Interlock Switches and Machine Guard Safety Switch Devices for Automation and Process Safety

Explosion Proof Safety Limit Switch with Adjustable Roller Lever (HLM-ARL-EX)

The HLM-ARL-EX has been designed to be mounted for position sensing of moving applications e.g. guard doors, conveyors, machine beds, elevators in atmospheres where the potential for explosion exists.

  • Body Material: Die-Cast Metal with Stainless Steel Head
  • Ingress Protection: IP67
  • Contacts: -Pole or 4-Pole Ex Rated Contact Blocks
  • Zones: 1, 21, 2, 22
  • Ex Marking: Exd IIC T6 (-20 ≤ Ta ≤ +60C) Gb / Ex tb IIIC T85C (-20 ≤ Ta ≤ +60C) Db
Part NumberPart Description
174313HLM Adj Roller Lever EX ‘1NC 1NO’- Die Cast
174314HLM Adj Roller Lever EX ‘2NC’- Die Cast
174315HLM Adj Roller Lever EX ‘2NC 2NO’- Die Cast

Important Note
Comes with 3m of pre-wired cable (longer available on request).

Technical Data
Approvals IECEx, cULus on LS-Ex Internal Contact Block
TechnologyLimit Switch, Adjustable Roller Lever
Housing MaterialPainted Die-Cast Aluminum
Head Material316 Grade Stainless Steel
Typical Operating Parameters0.4Nm Torque 15-30 degrees contact changeover
Operating Temperature-25 ... +80 °C
Enclosure ProtectionIP67
Switching frequency (LS-Ex)1.0 Hz maximum
Mechanical Life Expectancy (LS-Ex)1,000,000 switches
Electrical Life Expectancy (LS-Ex)Tested to 1,000,000 cycles at 24V. 0.2A

Ex Classification
ATEX Zones 1,21,2,22
II 2G Ex mb IIC T6 Gb
II 2D Ex mb IIIC T80C Db